package com.heima.wemadia.service.impl;

import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.wemedia.dto.WmLoginDto;
import com.heima.model.wemedia.entity.WmUser;
import com.heima.utils.common.AppJwtUtil;
import com.heima.utils.common.MD5Utils;
import com.heima.wemadia.dao.WmUserDao;
import com.heima.wemadia.service.WmUserService;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Service;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageImpl;
import org.springframework.data.domain.PageRequest;
import org.springframework.util.DigestUtils;

import javax.annotation.Resource;
import java.util.HashMap;
import java.util.Map;

/**
 * 自媒体用户表(WmUser)表服务实现类
 *
 * @author makejava
 * @since 2022-04-09 17:38:11
 */
@Service("wmUserService")
public class WmUserServiceImpl implements WmUserService {
    @Resource
    private WmUserDao wmUserDao;

    /**
     * 通过ID查询单条数据
     *
     * @param id 主键
     * @return 实例对象
     */
    @Override
    public WmUser queryById(Long id) {
        return this.wmUserDao.queryById(id);
    }

    /**
     * 分页查询
     *
     * @param wmUser 筛选条件
     * @param pageRequest      分页对象
     * @return 查询结果
     */
    @Override
    public Page<WmUser> queryByPage(WmUser wmUser, PageRequest pageRequest) {
        long total = this.wmUserDao.count(wmUser);
        return new PageImpl<>(this.wmUserDao.queryAllByLimit(wmUser, pageRequest), pageRequest, total);
    }

    /**
     * 新增数据
     *
     * @param wmUser 实例对象
     * @return 实例对象
     */
    @Override
    public WmUser insert(WmUser wmUser) {
        this.wmUserDao.insert(wmUser);
        return wmUser;
    }

    /**
     * 修改数据
     *
     * @param wmUser 实例对象
     * @return 实例对象
     */
    @Override
    public WmUser update(WmUser wmUser) {
        this.wmUserDao.update(wmUser);
        return this.queryById(wmUser.getId());
    }

    /**
     * 通过主键删除数据
     *
     * @param id 主键
     * @return 是否成功
     */
    @Override
    public boolean deleteById(Long id) {
        return this.wmUserDao.deleteById(id) > 0;
    }

    @Override
    public ResponseResult login(WmLoginDto wmLoginDto) {

        if (StringUtils.isBlank(wmLoginDto.getName())||StringUtils.isBlank(wmLoginDto.getPassword())) {
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID,"名字或者密码为空");
        }

        WmUser wmUser= wmUserDao.selectByName(wmLoginDto.getName());

        if(wmUser == null){
            return ResponseResult.errorResult(AppHttpCodeEnum.DATA_NOT_EXIST,"用户不存在");
        }

        String salt = wmUser.getSalt();
        String password = wmLoginDto.getPassword();
        password = DigestUtils.md5DigestAsHex((password + salt).getBytes());

        if (!password.equals(wmUser.getPassword())){
            return ResponseResult.errorResult(AppHttpCodeEnum.LOGIN_PASSWORD_ERROR);
        }
        Map<String, Object> map = new HashMap<>();
        map.put("token", AppJwtUtil.getToken(wmUser.getId()));
        wmUser.setSalt("");
        wmUser.setPassword("");
        map.put("user", wmUser);
        return ResponseResult.okResult(map);
    }
}
